In this work the durability assessment and the permanent deformation of a copper mold for continuous casting of steel have been investigated using mathematical models based on the Finite Element method. The cyclic plasticity behavior of the material is represented by a combined kinematic-isotropic model experimentally validated. Results from thermo-mechanical analysis are in good agreement with measurements. In particular, creep effects included into the model permit the evolution of bulging near the meniscus area to be correctly predicted. A life estimation is performed considering strain-life and stress-rupture time curves according to a cumulative damage law.
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Titolo: | Copper mold for continuous casting of steel: Modelling strategies to assess thermal distortion and durability | |
Autori: | BENASCIUTTI, Denis (Penultimo) | |
Data di pubblicazione: | 2017 | |
Rivista: | ||
Handle: | http://hdl.handle.net/11392/2382326 | |
ISBN: | 978-303571168-4 | |
Appare nelle tipologie: | 04.1 Contributi in atti di convegno (in Rivista) |